CONTENTS. 
LIV. A Letter from Monf Le Cat, M. D. Firfl 
Surgeon at the Hotel Dieu at Rouen, Royal Fro- 
feffor and Demonftrator of Anatomy and Sur- 
gery , Member of the Royal Academy of Surgery 
at Paris, and of the Academies of Sciences at 
Paris, London, Madrid, and Rouen, to Dr. Mor- 
timer, Secretary of the Royal Society, concerning 
the Diffe Elion of a Rupture . Tranfated from 
the French by Tho. Stack, M. D. F. R. S. 
p. 34,1. 
I.V. An Account of Dr. BohadfchV Treat ife, com- 
municated to the Royal Society, intituled , Dif- 
fertatio philofophico-medica de utilitate eledrila- 
tionis in curandis rnorbis, printed at Prague 175 1. 
Extracted and tranfated from the Latin by Mr. 
Wm. Watfon, F. R. S. p. 34?. 
LVI. An Account of an horizontal Top, invented 
by Mr. Serfon. By Mr. James Short, F. R. S. 
p. 352. 
LVII. Obfervations made in going up the Pic of 
Teneriffe. By Dr. Thomas Heberden 5 and com- 
municated by William Heberden, M. D. F.R S. 
LVIll. Obfervations of the Weather in Madeira, 
made by Dr Thomas Heberden > and communi- 
cated by William Heberden, M. D. F. R. S. 
P- 35 7 . 
LIX. ExtraEl of a Letter from Mr. Willem Van 
Hazen to Mr. Philip Miller, F. R. S. concerning 
the Quantity of Rain which fell at Leyden in 
the Tear 1751. p. 360. 
LX. An Account of a double Child j communicated 
to the Right Honourable the Lord Willoughby. 
of Parham, F. R. S. by Thomas Percival, Efqs 
p. 300. 
LXI. 
